Tiered trees, weights, and q-Eulerian numbers
نویسندگان
چکیده
منابع مشابه
THE q-TANGENT AND q-SECANT NUMBERS VIA BASIC EULERIAN POLYNOMIALS
The classical identity that relates Eulerian polynomials to tangent numbers together with the parallel result dealing with secant numbers is given a q-extension, both analytically and combinatorially. The analytic proof is based on a recent result by Shareshian and Wachs and the combinatorial one on the geometry of alternating permutations.
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Article history: Received 24 August 2009 Available online 25 February 2010
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ژورنال
عنوان ژورنال: Journal of Combinatorial Theory, Series A
سال: 2019
ISSN: 0097-3165
DOI: 10.1016/j.jcta.2018.12.002